#include <bits/stdc++.h>
using namespace std;
using i64 = int64_t;
using vi = vector<i64>;
using vvi = vector<vi>;

int fl;

int main() {
    int y, m, d;
    cin >> y >> m >> d;
    if (y == 1989) {
        if (m == 1) {
            if (d >= 8) fl = 1;
        } else {
            fl = 1;
        }
    }
    if (y >= 1989 && y < 2019) fl = 1;
    if (y == 2019) {
        if (m <= 3) fl = 1;
        if (m == 4) {
            if (d <= 30) fl = 1;
        }
    }

    cout << (fl ? "Yes" : "No") << endl;
}